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<br />W!:~TERN BUl'HDf.P.t W~TEP BULL[llr~ 19:6 l~n{Rr<.~TlorI'L Bou~m~R-r ,oJ,v w~TEP CUMMI~SII)I.
<br />
<br />41
<br />
<br />SUSPENDED SilT
<br />
<br />The follO>llng tables are b~"ed on d.etercllll8.tlons of gre.v1llleU1c p:r~ent.l4le" of dry sIlt 1n lIBt.er ElI.lllple8
<br />taken at et<ch ~tatloll l:.}' Olle of the fo11o\llll4l Illethods:
<br />
<br />A. By lCl\rer1ng a 1:'-48 depth 1nt.esrB.t1ng s8ll1pler at verticala located at cellten of aect-ions of equ.al
<br />d1schar"e 1n th~ r1"..r CJ<:).... .."c\.='o'" 'r,elr.!f; <:llJ"eI"ul to 8pp",ach but not strike the botWIll. Thes"",ples obtalned
<br />in the sect1or. fU"e combined to cOlllpr1se!l.comp:lsite slllllpl.e ror that dbt...
<br />
<br />B. By 1""er1116 ~ D-~] dept.h integn.U",; se.mpler lit vert1cal~ located at centera of e8ch sps1l of th.. ser_
<br />Vice bridge aCros~ the Al!l.lllO Canal be1ng car..ful to spproa~h bL.lt rIOt str1~e the bottOIll. The Sll.lllple9 obtained
<br />In the sect10n are colllbllled to ~o.lllpr1~", II. c:=?"E\...... :;=\"-e fer thf,.t dElle.
<br />
<br />C. By sampling at the ~tn"'.lII surface \l1t.h 1I seP!'J""te bottle at e",h of three ID1nts, Bp:lced 1/6. 1/2,
<br />&00 5/6 of th" stream \l1dth. The gravl....trtc perL'enla,ge 1n e"ch 5!l.Illple 18 detennlned. " coeffi~ient of 1.10 Is
<br />ap>J led to the "vern.ge of U1.e three, end the product 8pplled to the vol""", of t.he ~tre"'" (10\1 represented by
<br />thll.tsetofeBJllples.
<br />
<br />f"orea",eofcOlIlpa.:rison, the""sllJllpt10nlslIIIldc!thatl,847tonsOfdep:lsltedsllt vouldoccupy "vol=e
<br />of one acre.fo"t, Or One CL.lblc foot ot dep::>a1ted allt VCuld we1gh 85 p:I\J.Ild:i.
<br />
<br />Mgnlh
<br />
<br />
<br />""
<br />
<br />Wilt.
<br />
<br />Colorado River at Northerly International Boundary
<br />
<br />Per1odlQ56_1916
<br />
<br />li1n. lo:.J,4&9,()(X) 3,]00 11 0.0030 0.0041 0.0016 l.S '" JJ6 L'
<br />Feb. 143,)o:.J,000 1.1.100 .0075 .D124 .00]6 6,' I].] 116 1.0
<br />M~r. 2]5,)20,000 26,300 .0112 .Dl]! .00,95 14.2 4].1 '99 ,,'
<br />"'pt. ~j,Dj2,OOO 31,')00 .0101 .0285 ,- 17.1 ]9.9 'J' ,,'
<br />M., 133,618,()(X) ,."'" ,"""J ,006' ,OO}l J,l l~.] "" ',3
<br />Jun~ l)O,;!2l,ooo 5,200 .00110 .0050 ,00" ',3 14.6 92.6 ,,'
<br />July 18t1,1o.56,iXlO 6,300 , ,00'" ,,,,"' .OC12 3," 20.1 8<),3 J,"
<br />"'ug. 180,U6,OOO '.000 " .00]9 .0059 .00)1 J,' 19.9 103 ]"
<br />Sept. 17e,412,OOC1 12,000 6 ,006' ,0098 .00)0 6, I " I ~).6 1,6
<br />0<" 84,111,000 4,600 , .0054 .0068 .00]1 ,,' ",0 20.0 "
<br />~~.,. ?),228'~i '."'" " .Q04.B ,006' .0026 "'i ",' i ~.':l "
<br />Do" 196,1155,000 13,500 5 ,0066 .0102 .OC)8 ',J 20.2 m ,6
<br />Yearly 1,96<J,f392,OO'J 1.~.200 " 0.0061 'J.02B5 0.0012 l:".D \ 2)6.0: 2,:"90 59.2
<br />
<br />S&.IIljlle~ by lJ. S. Section and G.!Ifl-ly~e" by lJnJ.tej :;tet,,~ f'UJ"eau of R~cl<Ullat1an, Method A
<br />
<br />Intake Canal at MorelOIl Diversion Structure
<br />
<br />f'
<br />
<br />I'"
<br />Fe"
<br />Mil..
<br />Ap..
<br />M.,
<br />June
<br />July
<br />"'"
<br />S~pl.
<br />O<L
<br />Nov.
<br />Dee,
<br />y"n1v 1
<br />
<br />10,9.1140,000
<br />145,80],000
<br />2]4,8]2.000
<br />271,116,000
<br />132,99],000
<br />12g.411.000
<br />13].165.000
<br />119,241,000
<br />112,18],OOO
<br />84,)16,000
<br />9",840.000
<br />196,108,000
<br />.Slg,101.()())
<br />
<br />4,(,42
<br />7,41>6
<br />18,62.l
<br />25,1/\'3
<br />5.51>2
<br />5,909
<br />7,6)0
<br />6,982
<br />7,M
<br />6,194
<br />",,"
<br />7:732
<br />1(l7,11]:J
<br />
<br />"
<br />"
<br />5
<br />"
<br />! I
<br />
<br />
<br />-r"
<br />
<br />0.004]
<br />.0051
<br />.007C1
<br />:;:~
<br />,,^"'"
<br />.OO~2
<br />.0039
<br />,oo6J
<br />.0013
<br />.0(4)
<br />.00]9
<br />O.OW'
<br />
<br />O:~i~ 0 ~rr8: l~ I
<br />.0142 0048 135
<br />.0052/ 'XI31 30
<br />0059 0035 ]"
<br />0048 .00]7 4.1
<br />0045 00]] ].8
<br />.0154 00;<0 )8
<br />'S~15~ i 00"5 i lJ
<br />~. .0031 2."
<br />0047 .00)1 4."
<br />Q.IJL5L.IO.~~ 51.'~
<br />
<br />5,3
<br />5,6
<br />40.5
<br />]7.1
<br />ID.l
<br />28.0
<br />40.5
<br />]7.4
<br />15.5
<br />'"
<br />U
<br />U
<br />'3'
<br />
<br />?e:r1ad:"9521976
<br />22.3 0.2
<br />104 .9
<br />154 53
<br />121 75
<br />51.:l 1.5
<br />lCQ 3.2
<br />156 4.1
<br />1]5 ).8
<br />64.7 1'1
<br />12.0 .)
<br />9.3 .2
<br />14.(1 1.1
<br />E.96 5l.4
<br />
<br />S"",ple~ aJ1d nnalyseE by JoIeJl.1can Section. JoIethnd B
<br />
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